Whilst (impatiently!) waiting for fresh data from Cassini, here's another archive pic, this time from Rhea.

Rhea is the second largest moon of Saturn, behind Titan, and the largest without an atmosphere. It is composed mostly of water ice, but has a small rocky core. Rhea's rotation and orbit are locked together (just like Earth's Moon) so that one side always faces Saturn.
A consequence of this is that one side always leads the other.

Rhea's leading surface is much more heavily cratered than its trailing surface. The above photograph was taken with the Voyager 1 spacecraft.

Photo Credit: Voyager, NASA; Copyright: Calvin J. Hamilton

tlr online

27-04-04, 23:00

Sure is purdy. Read on BBC scientists have found a new mineral compound on our moon.